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Homo sapiens

ABSTRACT: RNAseq to determine whether bidirectional transcription occurs over transposable elements following depletion of SETDB1 in THP-1 AML Cells

PROVIDER: PRJNA401800 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6000370_1.fastq.gz	Fastqsanger.gz
	SRR6000370_2.fastq.gz	Fastqsanger.gz
	SRR6000371_1.fastq.gz	Fastqsanger.gz
	SRR6000371_2.fastq.gz	Fastqsanger.gz
	SRR6000372_1.fastq.gz	Fastqsanger.gz

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Similar Datasets

RNAseq to determine whether bidirectional transcription occurs over transposable elements following depletion of SETDB1 in THP-1 AML Cells

Project description:SETDB1 disruption leads to an increase in the expression of transposable elements as determined by our standard RNAseq, where bidirectional transcription has been reported. We repeated RNA seq on our samples with a stranded prep to determine whether bidirectional transcription occurs of transposable elements following depletion of SETDB1 in THP-1 AML Cells Methods: THP-1 cells were treated with two different SETDB1 sgRNAs (6, and 9) or Non-targeting control sgRNA (NTC) for 4 and 7 days. RNA was isolated and prepared for RNAseq with Qiagen RNeasy kits. Results: Consensus sequences for elements for upregulated TEs were downloaded from the Dfam database (Hubley et al., 2016). Stranded RNA-seq data was then aligned to consensus sequences using BWA-MEM and quantified using HTseq-count(Anders et al., 2015; Li, 2013). Reads were visualized using the IGV genome browser, using a custom pseudogenome that was generated from the Dfam consensus sequences (Robinson et al., 2011; Thorvaldsdottir et al., 2013). Conclusions: Our data determined that following the disruption of SETDB1, there is increased bidirectional transcription over a subset of transposable elements.

2017-09-06 | GSE103410 | GEO

Homo sapiens

Project description:RNAseq to determine gene expression changes following depletion of SETDB1 in THP-1 AML Cells

| PRJNA401801 | ENA

RNAseq to determine gene expression changes following depletion of SETDB1 in THP-1 AML Cells

Project description:Purpose: To determine how loss of SETDB1 effects gene expression in THP-1 AML cells. Methods: THP-1 cells were treated with two different SETDB1 sgRNAs (6, and 9) or Non-targeting control sgRNA (NTC) for 4 and 7 days. RNA was isolated and prepared for RNAseq with Qiagen RNeasy kits. Results: Using an optimized data analysis workflow, we mapped 23 million or more sequence reads per sample to the human genome (GRCh38) with GSNAP for obtaining standard gene expression measurements. Since SETDB1 is also know to regulate repetitive elements we also mapped sequences to a pseudogenome containing tranposable elements from hg19 repeatmasker annotations using RepEnrich and following the pipeline published on GitHub (https://github.com/nskvir/RepEnrich). Conclusions: Our data determined that immediately following the disruption of SETDB1, a strong type I Interferon response can be observed at day 4. In addition, many repetitive elements are also significanly induced, including L1 LINEs, Endogenous Retroviruses, and Satellite repeats.

2017-09-06 | GSE103409 | GEO

SETDB1 suppresses interferon responses and NK cell-mediated immunosurveillance specifically in monocytic AML: H3K9me3 ChIP-seq of cSAM leukemia cells with Setdb1 depletion [ChIP-seq]

Project description:Monocytic acute myeloid leukemia (AML) responds poorly to current treatments, including venetoclax-based therapy. We conducted in vivo and in vitro CRISPR/Cas9 library screenings using a mouse monocytic AML model, and identified SETDB1 and its binding partners (ATF7IP and TRIM33) as crucial tumor promoters in vivo. The growth-inhibitory effect of Setdb1 depletion in vivo was mainly dependent on NK cell-mediated cytotoxicity. Mechanistically, SETDB1 depletion upregulated interferon-stimulated genes and NKG2D ligands through demethylation of histone H3 Lys9 at the monocyte-specific enhancer regions, thereby enhancing their immunogenicity to NK cells and intrinsic apoptosis. Importantly, these effects were not observed in non-monocytic leukemia cells. We also identified the expression of MNDA and its murine counterpart Ifi203 as biomarkers to predict the sensitivity of each AML to SETDB1 depletion. Our study highlights the critical and selective role of SETDB1 in monocytic AML and underscores its potential as a therapeutic target for current unmet needs.

2024-08-03 | GSE266098 | GEO

SETDB1 suppresses interferon responses and NK cell-mediated immunosurveillance specifically in monocytic AML: CRISPR/Cas9 screens on cSAM leukemia cells

2024-08-03 | GSE270630 | GEO

SETDB1 suppresses interferon responses and NK cell-mediated immunosurveillance specifically in monocytic AML: Gene expression profiles of cSAM leukemia cells with Setdb1 depletion [RNA-seq]

2024-08-03 | GSE266097 | GEO

H3K9me3 chIP-seq 5 days following disruption of the SETDB1 H3K9 trimethylase with two different sgRNAs (6, and 9) or non-targeting control

Project description:We performed H3K9me3 chIP-seq 5 days following disruption of the SETDB1 H3K9 trimethylase with two different sgRNAs (6, and 9) or non-targeting control. Our data suggests that H3K9me3 is modestly reduced over transposable elements and some ZNF genes following disruption of SETDB1.

2017-09-06 | GSE103408 | GEO

Gene expression changes in SHI-1 cells following exposure to disulfiram/copper, niclosamde or combined drugs

Project description:Disulfiram and niclosamide were identified as drugs that induced depletion of an MLL-AF9-luciferase fusion protein in THP-1 AML cells, in a bioluminescence sreen. MLL-fusion protein depletion was confirmed in AML and ALL cell lines expressing different MLL-fusion proteins. Combination of disulfiram with niclosamide was found to enhance depletion of MLL-fusion proteins. To investigate whether this enhanced depletion resulted in increased suppression of downstream target genes. MLL-AF6 expressing SHI-1 cells were exposed to disulfiram/copper, nciclosamide or combined drugs. SHI-1 cells were treated for 16 hours with 0.3uM disulfiram / 1uM copper, 5uM niclosamide or combined drugs and RNAseq performed on isolated RNA.

2024-07-03 | GSE262673 | GEO

Expression data from mouse cecum

Project description:To adapt the lives of organisms to the day-night cycle, evolution has built a complex machinery, whose molecular components are able to anticipate and drive changes in organism behavior and metabolism. A mutual bidirectional interaction exists between circadian abnormalities and development of diseases. Microarrays were used to determine whether circadian regulation occurs at the transcriptional level in response to Salmonella Typhimurium infection.

2013-04-25 | GSE46356 | GEO

Hypoxia stabilizes SETDB1 to maintain genome stability

Project description:Von Hippel-Lindau (VHL) is a tumor suppressor that functions as the substrate recognition subunit of the CRL2VHL E3 complex. While substrates of VHL have been identified, its tumor suppressive role remains to be fully understood. For further determination of VHL substrates, we analyzed the physical interactome of VHL and identified the histone H3K9 methyltransferase SETBD1 as a novel target. SETDB1 undergoes oxygen-dependent hydroxylation by prolyl hydroxylase domain proteins (PHD) and the CRL2VHL complex recognizes hydroxylated SETDB1 for ubiquitin-mediated degradation. Under hypoxic conditions, SETDB1 accumulates by escaping CRL2VHL activity. Loss of SETDB1 in hypoxia compared with that in normoxia escalates the production of transposable element (TE)-derived double-stranded RNAs (dsRNAs), thereby hyperactivating the immune-inflammatory response. In addition, strong derepression of TEs in hypoxic cells lacking SETDB1 triggers DNA damage-induced death. Our collective results support a molecular mechanism of oxygen-dependent SETDB1 degradation by the CRL2VHL E3 complex and reveal a role of SETDB1 in genome stability under hypoxia.

2024-01-26 | PXD037104 | Pride

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